Well, the name on it is in blue/red "bubble" type lettering & reads "FAT ALBERT" so it's about as close to purple as it's going to get.
As far as a propeller, that won't work, as it occasionally gets used for an open car, and since FIA ruled against Jim Hall & the Chapperall with regards to "movable areodynamic devices" it would, in fact, cover the addition of a propeller. Sorry.

Can anyone provide an estimate of how fast the cars in the chase were ACTUALLY going on that final "country" chase sequence? Since the camera vehicles paralleling them had to deliver quality bounce-free film, that must have limited the actual speeds.

Quote:

Originally Posted by VN350X10

Possible research subject for a technical inquisitiion of sorts.

Quote:

Originally Posted by IMDB

The director called for speeds of about 75-80 mph, but the cars (including the ones containing the cameras) reached speeds of over 110 mph.
Filming of the chase scene took three weeks, resulting in 9 minutes and 42 seconds of footage.http://www.imdb.com/title/tt0062765/